tag2distrepo: also regen f*-coreos-continuous repos

We want to be able to get automatically regenerated yum repos whenever
we build into the continuous tags. This will be used by the Fedora
CoreOS team for building and testing.

See https://pagure.io/releng/issue/8165 for more details.

roles/bodhi2/backend/templates/tag2distrepo.py.j2

@@ -24,6 +24,8 @@ config = {
                 'epel6-infra-stg': ['47dd8ef9'],
                 'epel7-infra': ['47dd8ef9'],
                 'epel7-infra-stg': ['47dd8ef9'],
+                'f29-coreos-continuous': [],
+                'f30-coreos-continuous': [],
             }
         }
     }